Peyote is a spineless cactus (ones that do not have thorns) native to Mexico, whose principal active ingredient is mescaline. Naturally occurring mescaline leads to hallucinogenic effects comparable to those of LSD. Peyote has been used by native Mexican tribes as a part of traditional religious rites since a very long time. It may have been the first psychedelic to capture mainstream Western attention (much before LSD and psilocybin did). It is said that the effects opens up altered states of perception and feeling. The trance like state can easily increase self-awareness, help in confront and breakdown denial mechanisms and also gives an ability to reinterpret self. It is used in the treatment of healing addicts.